diff --git a/requirements.txt b/requirements.txt
index 6d85425..1b1bd4a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 Django==1.9.1
 django-analytical==2.0.0
-lxml==3.4.4
+lxml==4.9.1
 PyYAML==3.11
 wheel==0.24.0